package com.sky.mapper;

import com.sky.entity.ShoppingCart;
import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Update;

import java.util.List;

@Mapper
public interface ShoppingCartMapper {

    /**
     * 根据用户id、口味、菜品id或套餐id查询购物车
     *
     * @param shoppingCart
     * @return
     */
    List<ShoppingCart> list(ShoppingCart shoppingCart);

    /**
     * 根据id修改商品数量
     *
     * @param cart
     */
    @Update("update sky_take_out.shopping_cart set number = #{number} where id = #{id}")
    void updateNumberById(ShoppingCart cart);

    /**
     * 添加购物车
     *
     * @param shoppingCart
     */
    @Insert("insert into sky_take_out.shopping_cart" +
            "(name, image, user_id, dish_id, setmeal_id, dish_flavor, amount, create_time) " +
            "VALUES " +
            "(#{name},#{image},#{userId},#{dishId},#{setmealId},#{dishFlavor},#{amount},#{createTime})")
    void insert(ShoppingCart shoppingCart);

    /**
     * 清空购物车
     *
     * @param userId
     */
    @Delete("delete from sky_take_out.shopping_cart where user_id = #{userId}")
    void deleteByUserId(Long userId);

    /**
     * 修改购物车中商品的数量
     * @param shoppingCart
     */
    void updateNumberByShoppingCart(ShoppingCart shoppingCart);

    /**
     * 根据id删除购物车中一个商品
     * @param id
     */
    @Delete("delete from sky_take_out.shopping_cart where id = #{id}")
    void deleteFromId(Long id);

    /**
     * 将购物车对象批量添加到数据库
     * @param shoppingCartList 购物车对象
     */
    void insertBatch(List<ShoppingCart> shoppingCartList);
}
